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首页> 外文会议>EAGE Conference Exhibition Incorporating SPE EUROPEC >Determination of the Acoustic Properties of Hydrocarbon Rich Gases Using PVT Relations
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Determination of the Acoustic Properties of Hydrocarbon Rich Gases Using PVT Relations

机译：利用PVT关系式确定富烃气体的声学特性

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Published approaches for determining the seismic properties of pore fluids are investigated to examine the effect of gas quality at constant pressure and temperature. For this purpose, a range of fluids from natural gas to rich gas condensate is prepared and tested to determine pertinent acoustic properties of the fluid at single-phase conditions. The results show that the ratio of heat capacities of fluids in currently used models do not vary with the change in gas quality, consequently the calculated gas bulk modulus may not appropriately reflect the fluid composition dependency. Therefore a new approach is suggested in this work to calculate the ratio of heat capacities of gases where the effect of gas quality is taken into consideration. This leads to an increase in accuracy of predicted seismic property changes for gas condensate and other gas reservoirs.
机译：研究了确定孔隙流体的地震特性的已发布方法，以研究在恒定压力和温度下气体质量的影响。为此，准备并测试了从天然气到富气冷凝液的各种流体，以确定在单相条件下流体的相关声学特性。结果表明，当前使用的模型中流体的热容量比率不会随气体质量的变化而变化，因此，计算出的气体体积模量可能无法适当地反映流体成分的依赖性。因此，在这项工作中提出了一种新的方法来计算考虑了气体质量影响的气体的热容量比率。这导致凝析气和其他气藏的预测地震特性变化的准确性提高。

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